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Old 14th Aug 2004, 11:45 am   #1
radiosaddo
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Default AVO 8 Variants (Mk1,Mk2,Mk3,Mk4...etc)

Further to my recent thread on alignment, I thought I would check out AVOmeters, with a view to buying one.
It would seem that there are a number of variants of the AVO 8.

Does anyone have any info on them?

Which is the better one to go for?
At some point AVO changed from using " 2.5 " and " 10 " as a multiplier to " 3 " and " 10 " (i.e. from ranges 2.5/10/25/250/1000..etc to 3/10/30/300/1000, etc)

Also the high range changed from 2500V to 3000V and then disappeared!

This is what I have found out so far......

Mk1, not seen one, was it just called " AVO8 " as it was the first??
Mk2, ranges based on 2.5/10/25/250/1000 plus 2.5kV, also " LR " and " INS "
Mk3, appears to be the same as Mk2, anyone know different??
Mk4, not seen one.
Mk5, All change, now plastic, and case re-designed. Ranges now 3/10/30/300/1000 plus 3kV.
Mk6, Still plastic, a 600V range has appeared. The 3kV range and terminals have vanished.
Mk7, current model, as in RS, etc. Similar to Mk6.

Also, I have found a " Test Set Multirange " which looks like a Mk2/3. but has the ranges of the 3/10/30/300/1000 plus 3kV. Was this based on a Mk4?

Also I have seen also, a " Test Set Multirange Mk2 " which looks like a AVO8Mk5.
I guess the " Test Set Multirange " versions are military, as they look more robust.

I'm sure loads of you have these in your workshops, which one do you have, etc.??

My questions, does anyone else know more about this (I dare say)

Which is the best one? to get; an early one or a later one?
Which range set up is easier/better?

Many thanks